Definition of dubby:
(adj) :
(music) In the style of dub music; having been heavily remixed, particularly with reduced vocals or emphasised bass.
(n) :
(slang) Synonym of rubby-dub (“drinker of alcohol in non-beverage form”).
(adj) :
(dated, dialectal) stubby, stumpy; Lacking shapeliness or finesse.
(adj) :
(dated, dialectal) wet and muddy; dirty